Question

Two workers can do half of the work in $30$ days. In how many days can $3$ workers complete the entire work?

• A. $40$
• B. $50$
• C. $30$
• D. $10$

Answer 1

The correct option is A $40$

$2$ workers can do $\frac{1}{2}$ of the Work in $30$ $days$

that means full work can be done in $60$ days by $2$ workers

Now,

$\Rightarrow Work=days\times workers$

$\Rightarrow Work=60\times 2$

$\Rightarrow Work=120$

Now, Work is same

$\Rightarrow 120=days\times 3$

$\Rightarrow days=40$

Therefore Answer is $\left(A\right)$